Предмет: Химия, автор: 7pypity7

запишите правила техники безопасности, приведённые на картинках 1,2,3

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Ответы

Автор ответа: makcim2504
60

1) Определяя вещества по запаху нужно направлять испарения легким движением руки к носу при этом нельзя делать глубокий вздох.

2)Следует равномерно нагревать всю пробирку и её содержимое, чтобы избежать перегрева и растрескивания.

3) Запрещается пробовать вещества на вкус, принимать пищу и напитки в кабинете химии.


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Предмет: Литература, автор: vlastenok1971